🛡️ Sentinel: Fix sensitive data exposure in backup logs #14
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- Prevent leakage of credentials (PATs) in backup logs - Sanitize URLs in stdout during dry-run - Add Sentinel journal entry Co-authored-by: kidchenko <5432753+kidchenko@users.noreply.github.com>
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📝 WalkthroughWalkthroughA documentation file and shell script update address Git credential leakage in logs. The script now sanitizes remote URLs by masking credentials before logging and user-facing output, while preserving the original URL for actual Git operations. Changes
Estimated code review effort🎯 2 (Simple) | ⏱️ ~10 minutes Poem
🚥 Pre-merge checks | ✅ 3✅ Passed checks (3 passed)
✏️ Tip: You can configure your own custom pre-merge checks in the settings. ✨ Finishing touches
🧪 Generate unit tests (beta)
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Actionable comments posted: 1
🤖 Fix all issues with AI agents
In @.jules/sentinel.md:
- Around line 1-4: Change the front-matter heading "## 2026-01-30 - Leaking Git
Credentials in Logs" to an H1 ("# 2026-01-30 - Leaking Git Credentials in
Logs"), add a blank line immediately after that heading, and wrap long lines in
the "Vulnerability:", "Learning:", and "Prevention:" paragraphs so each line
stays within the linter's max length (break the long "Prevention: Always
sanitize URLs..." sentence into two or more lines). Ensure the "Vulnerability:",
"Learning:", and "Prevention:" labels remain intact and that the final file has
the H1, one blank line, then the three short, wrapped paragraphs.
| ## 2026-01-30 - Leaking Git Credentials in Logs | ||
| **Vulnerability:** Git remote URLs containing authentication tokens were being logged to plain text files. | ||
| **Learning:** Utilities that aggregate info about git repositories (like backup scripts) often indiscriminately log `git remote get-url`. When users use PATs (Personal Access Tokens) in URLs, these secrets are leaked. | ||
| **Prevention:** Always sanitize URLs (redact `user:password@`) before logging or displaying them. |
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Fix markdownlint violations (H1, blank line, and line length).
The linter is failing on heading level/spacing and line length. Please update the entry to start with an H1, add a blank line after the heading, and wrap long lines.
✍️ Suggested fix
-## 2026-01-30 - Leaking Git Credentials in Logs
-**Vulnerability:** Git remote URLs containing authentication tokens were being logged to plain text files.
-**Learning:** Utilities that aggregate info about git repositories (like backup scripts) often indiscriminately log `git remote get-url`. When users use PATs (Personal Access Tokens) in URLs, these secrets are leaked.
-**Prevention:** Always sanitize URLs (redact `user:password@`) before logging or displaying them.
+# 2026-01-30 - Leaking Git Credentials in Logs
+
+**Vulnerability:** Git remote URLs containing authentication tokens were being
+logged to plain text files.
+
+**Learning:** Utilities that aggregate info about git repositories (like backup
+scripts) often indiscriminately log `git remote get-url`. When users use PATs
+(Personal Access Tokens) in URLs, these secrets are leaked.
+
+**Prevention:** Always sanitize URLs (redact `user:password@`) before logging or
+displaying them.📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| ## 2026-01-30 - Leaking Git Credentials in Logs | |
| **Vulnerability:** Git remote URLs containing authentication tokens were being logged to plain text files. | |
| **Learning:** Utilities that aggregate info about git repositories (like backup scripts) often indiscriminately log `git remote get-url`. When users use PATs (Personal Access Tokens) in URLs, these secrets are leaked. | |
| **Prevention:** Always sanitize URLs (redact `user:password@`) before logging or displaying them. | |
| # 2026-01-30 - Leaking Git Credentials in Logs | |
| **Vulnerability:** Git remote URLs containing authentication tokens were being | |
| logged to plain text files. | |
| **Learning:** Utilities that aggregate info about git repositories (like backup | |
| scripts) often indiscriminately log `git remote get-url`. When users use PATs | |
| (Personal Access Tokens) in URLs, these secrets are leaked. | |
| **Prevention:** Always sanitize URLs (redact `user:password@`) before logging or | |
| displaying them. |
🧰 Tools
🪛 GitHub Check: Lint Documentation
[failure] 4-4: Line length
.jules/sentinel.md:4:81 MD013/line-length Line length [Expected: 80; Actual: 97] https://github.com/DavidAnson/markdownlint/blob/v0.34.0/doc/md013.md
[failure] 3-3: Line length
.jules/sentinel.md:3:81 MD013/line-length Line length [Expected: 80; Actual: 217] https://github.com/DavidAnson/markdownlint/blob/v0.34.0/doc/md013.md
[failure] 2-2: Line length
.jules/sentinel.md:2:81 MD013/line-length Line length [Expected: 80; Actual: 106] https://github.com/DavidAnson/markdownlint/blob/v0.34.0/doc/md013.md
[failure] 1-1: First line in a file should be a top-level heading
.jules/sentinel.md:1 MD041/first-line-heading/first-line-h1 First line in a file should be a top-level heading [Context: "## 2026-01-30 - Leaking Git Cr..."] https://github.com/DavidAnson/markdownlint/blob/v0.34.0/doc/md041.md
[failure] 1-1: Headings should be surrounded by blank lines
.jules/sentinel.md:1 MD022/blanks-around-headings Headings should be surrounded by blank lines [Expected: 1; Actual: 0; Below] [Context: "## 2026-01-30 - Leaking Git Credentials in Logs"] https://github.com/DavidAnson/markdownlint/blob/v0.34.0/doc/md022.md
🤖 Prompt for AI Agents
In @.jules/sentinel.md around lines 1 - 4, Change the front-matter heading "##
2026-01-30 - Leaking Git Credentials in Logs" to an H1 ("# 2026-01-30 - Leaking
Git Credentials in Logs"), add a blank line immediately after that heading, and
wrap long lines in the "Vulnerability:", "Learning:", and "Prevention:"
paragraphs so each line stays within the linter's max length (break the long
"Prevention: Always sanitize URLs..." sentence into two or more lines). Ensure
the "Vulnerability:", "Learning:", and "Prevention:" labels remain intact and
that the final file has the H1, one blank line, then the three short, wrapped
paragraphs.
1 participant
🛡️ Sentinel: [CRITICAL/HIGH] Fix sensitive data exposure in logs
🚨 Severity: HIGH
💡 Vulnerability: Git remote URLs containing authentication tokens (e.g.
https://user:token@github.com/...) were being logged to plain text files (git-repos.log) and printed to stdout.🎯 Impact: If a user's logs are exposed or if they share their screen/logs, their Personal Access Tokens could be compromised, granting unauthorized access to their repositories.
🔧 Fix: Added a sanitization step using
sedto mask credentials in the URL (replacing://user:pass@with://***@) before logging or printing.✅ Verification: Verified with a reproduction script that creates a dummy repo with a secret in the remote URL, runs the backup script, and confirms the secret is not present in the generated log file.
PR created automatically by Jules for task 6917695432768336272 started by @kidchenko
Summary by CodeRabbit
Release Notes
Bug Fixes
Documentation
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